FR2397396A1 - Procede de recuperation du toluene diisocyanate a partir des residus de fabrication - Google Patents

Procede de recuperation du toluene diisocyanate a partir des residus de fabrication

Info

Publication number
FR2397396A1
FR2397396A1 FR7721436A FR7721436A FR2397396A1 FR 2397396 A1 FR2397396 A1 FR 2397396A1 FR 7721436 A FR7721436 A FR 7721436A FR 7721436 A FR7721436 A FR 7721436A FR 2397396 A1 FR2397396 A1 FR 2397396A1
Authority
FR
France
Prior art keywords
toluene diisocyanate
manufacturing residues
recovering toluene
tdi
degrees
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
FR7721436A
Other languages
English (en)
Other versions
FR2397396B1 (fr
Inventor
Pierre Ailloud
Philippe D Haussy
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Produits Chimiques Ugine Kuhlmann
Ugine Kuhlmann SA
Original Assignee
Produits Chimiques Ugine Kuhlmann
Ugine Kuhlmann SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Produits Chimiques Ugine Kuhlmann, Ugine Kuhlmann SA filed Critical Produits Chimiques Ugine Kuhlmann
Priority to FR7721436A priority Critical patent/FR2397396A1/fr
Priority to PT68171A priority patent/PT68171A/fr
Priority to IN453/DEL/78A priority patent/IN148484B/en
Priority to US05/918,581 priority patent/US4216063A/en
Priority to IT68483/78A priority patent/IT1111627B/it
Priority to AR272793A priority patent/AR214462A1/es
Priority to DE7878400051T priority patent/DE2861504D1/de
Priority to EP78400051A priority patent/EP0000463B1/fr
Priority to IE1366/78A priority patent/IE47024B1/en
Priority to AU37902/78A priority patent/AU522377B2/en
Priority to DD78206629A priority patent/DD138314A5/xx
Priority to CA307,196A priority patent/CA1094090A/fr
Priority to DK310578A priority patent/DK154426C/da
Priority to ES471637A priority patent/ES471637A1/es
Priority to BR7804465A priority patent/BR7804465A/pt
Priority to JP8412978A priority patent/JPS5419938A/ja
Priority to SU782634047A priority patent/SU1264840A3/ru
Publication of FR2397396A1 publication Critical patent/FR2397396A1/fr
Application granted granted Critical
Publication of FR2397396B1 publication Critical patent/FR2397396B1/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
    • B01D3/10—Vacuum distillation
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C263/00—Preparation of derivatives of isocyanic acid
    • C07C263/18—Separation; Purification; Stabilisation; Use of additives
    • C07C263/20—Separation; Purification
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S159/00—Concentrating evaporators
    • Y10S159/10—Organic

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)

Abstract

Procédé de séparation sans décomposition, entièrement continu et automatique du TDI des produits lourds de fabrication, consistant à évaporer le TDI dans un évaporateur agité et raclé, à une température débutant vers 78-175 degrés C, sous une pression de 1 à 50 mm Hg, portée ensuite progressivement jusqu'à une température de 210 à 250 degrés C, sous une pression de 1 à 50 mm Hg, avec un temps de séjour minimum de 15 mn dans l'évaporateur, et à extraire les résidus en continu.
FR7721436A 1977-07-12 1977-07-12 Procede de recuperation du toluene diisocyanate a partir des residus de fabrication Granted FR2397396A1 (fr)

Priority Applications (17)

Application Number Priority Date Filing Date Title
FR7721436A FR2397396A1 (fr) 1977-07-12 1977-07-12 Procede de recuperation du toluene diisocyanate a partir des residus de fabrication
PT68171A PT68171A (fr) 1977-07-12 1978-06-15 Procede de recuperation du toluene diisocyanate a partir des residus de fabrication
IN453/DEL/78A IN148484B (fr) 1977-07-12 1978-06-20
US05/918,581 US4216063A (en) 1977-07-12 1978-06-23 Process for recovery of toluene diisocyanate
IT68483/78A IT1111627B (it) 1977-07-12 1978-06-23 Procedimento per il recupero del toluen diisocianato dai residui di fabbricazione
AR272793A AR214462A1 (es) 1977-07-12 1978-06-30 Un procedimiento para separar,sin descomposicion,en forma completamente continua y automatica,diisocianato de tolueno
EP78400051A EP0000463B1 (fr) 1977-07-12 1978-07-03 "Procédé de séparation du toluène diisocyanate à partir des résidus de fabrication"
DE7878400051T DE2861504D1 (en) 1977-07-12 1978-07-03 Method for separating toluene diisocyanate from fabrication process residues
IE1366/78A IE47024B1 (en) 1977-07-12 1978-07-07 Method for the recovery of toluene diisocyanate
AU37902/78A AU522377B2 (en) 1977-07-12 1978-07-10 The recovery of toluene diisocyanate
DD78206629A DD138314A5 (de) 1977-07-12 1978-07-10 Verfahren zur wiedergewinnung von toluoldiisocyanat aus fabrikationsrueckstaenden
CA307,196A CA1094090A (fr) 1977-07-12 1978-07-11 Procede de recuperation de toluene diisocyanate a partir des residus de fabrication
DK310578A DK154426C (da) 1977-07-12 1978-07-11 Fremgangsmaade til kontinuerlig og automatisk udvinding af toluendiisocyanat fra tunge biprodukter ved fremstillingen
ES471637A ES471637A1 (es) 1977-07-12 1978-07-11 Procedimiento de separacion sin descomposicion, completamen-te continuo y automatico, del toluendiisocianato
BR7804465A BR7804465A (pt) 1977-07-12 1978-07-11 Processo de separacao sem decomposicao inteiramente continuo e automatico,do di-isocianato de tolueno de produtos pesados de fabricacao
JP8412978A JPS5419938A (en) 1977-07-12 1978-07-12 Method of separating and recovering tolylendiisocyanate from production residue of tolylendiisocyanate
SU782634047A SU1264840A3 (ru) 1977-07-12 1978-07-12 Способ выделени толуилендиизоцианата из отходов производства

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7721436A FR2397396A1 (fr) 1977-07-12 1977-07-12 Procede de recuperation du toluene diisocyanate a partir des residus de fabrication

Publications (2)

Publication Number Publication Date
FR2397396A1 true FR2397396A1 (fr) 1979-02-09
FR2397396B1 FR2397396B1 (fr) 1980-01-18

Family

ID=9193273

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7721436A Granted FR2397396A1 (fr) 1977-07-12 1977-07-12 Procede de recuperation du toluene diisocyanate a partir des residus de fabrication

Country Status (17)

Country Link
US (1) US4216063A (fr)
EP (1) EP0000463B1 (fr)
JP (1) JPS5419938A (fr)
AR (1) AR214462A1 (fr)
AU (1) AU522377B2 (fr)
BR (1) BR7804465A (fr)
CA (1) CA1094090A (fr)
DD (1) DD138314A5 (fr)
DE (1) DE2861504D1 (fr)
DK (1) DK154426C (fr)
ES (1) ES471637A1 (fr)
FR (1) FR2397396A1 (fr)
IE (1) IE47024B1 (fr)
IN (1) IN148484B (fr)
IT (1) IT1111627B (fr)
PT (1) PT68171A (fr)
SU (1) SU1264840A3 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2915830A1 (de) * 1979-04-19 1980-10-23 Basf Ag Gewinnung von toluylendiisocyanat und/oder hoehersiedenden loesungsmitteln im wirbelbett aus destillationsrueckstaenden der toluylendiisocanat-herstellung
FR2625742B1 (fr) * 1988-01-13 1990-06-22 Rhone Poulenc Chimie Procede de separation du toluene diisocyanate contenu dans les residus de sa fabrication
JPH02138567U (fr) * 1989-04-21 1990-11-19
US5051152A (en) * 1989-09-26 1991-09-24 Air Products And Chemicals, Inc. Preparation of urethane prepolymers having low levels of residual toluene diisocyanate
JP2504851Y2 (ja) * 1990-02-07 1996-07-24 株式会社シマノ 釣り用リ―ルのリ―ドスイッチ取り付け構造
DE4317669A1 (de) * 1993-05-27 1994-12-01 Bayer Ag Verfahren zur Herstellung von Isocyanaten und kontinuierlichen Aufarbeitung des Rückstandes
DE4430951C1 (de) * 1994-08-31 1996-05-23 Bayer Ag Verfahren und Vorrichtung zur Abtrennung eines festen Rückstandes aus seiner Lösung im gerührten Gutbett
US5962728A (en) * 1997-10-31 1999-10-05 Arco Chemical Technology, L.P. Isocyanate residue purification
DE10260092A1 (de) * 2002-12-19 2004-07-01 Basf Ag Verfahren zur Reinigung von Isocyanaten
EP1931625B1 (fr) * 2005-09-29 2015-11-11 Basf Se Procede pour purifier des residus contenant des isocyanates
CN102408354A (zh) * 2011-10-24 2012-04-11 天津大学 一种回收甲苯二异氰酸酯的方法及装置
JP6138253B2 (ja) * 2012-07-11 2017-05-31 コベストロ、ドイチュラント、アクチエンゲゼルシャフトＣｏｖｅｓｔｒｏ Ｄｅｕｔｓｃｈｌａｎｄ Ａｇ イソシアネート製造において生じる蒸留残渣を処理する方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2706169A (en) * 1954-03-04 1955-04-12 Du Pont Flash distillation of 2,4-tolylene diisocyanate
US2974725A (en) * 1954-05-04 1961-03-14 Bayer Ag Process and apparatus for continuously obtaining dry materials
US3457291A (en) * 1965-04-01 1969-07-22 Union Carbide Corp Production of isocyanates
US3405040A (en) 1965-08-31 1968-10-08 Mobay Chemical Corp Method for recovering tolylene diisocyanate
US3542112A (en) * 1968-06-05 1970-11-24 Artisan Ind Thin-film evaporator having multi-zone temperature control jacket
CA998060A (en) 1970-05-22 1976-10-05 Carl F. Irwin Recovery of organic isocyanate
DD130143B1 (de) * 1975-08-15 1979-12-27 Guenter Muecke Verfahren zur kontinuierlichen thermischen abtrennung organischer isocyanate aus fluessigem destillationsrueckstand

Also Published As

Publication number Publication date
IT7868483A0 (it) 1978-06-23
DD138314A5 (de) 1979-10-24
JPS612057B2 (fr) 1986-01-22
ES471637A1 (es) 1979-02-01
AU522377B2 (en) 1982-06-03
DK154426B (da) 1988-11-14
IT1111627B (it) 1986-01-13
EP0000463A1 (fr) 1979-01-24
DE2861504D1 (en) 1982-02-25
JPS5419938A (en) 1979-02-15
DK154426C (da) 1989-04-10
IE47024B1 (en) 1983-11-30
FR2397396B1 (fr) 1980-01-18
CA1094090A (fr) 1981-01-20
AR214462A1 (es) 1979-06-15
SU1264840A3 (ru) 1986-10-15
IE781366L (en) 1979-01-12
IN148484B (fr) 1981-03-07
EP0000463B1 (fr) 1982-01-06
US4216063A (en) 1980-08-05
DK310578A (da) 1979-01-13
BR7804465A (pt) 1979-03-20
AU3790278A (en) 1980-01-17
PT68171A (fr) 1978-07-01

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